You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Eric Liang (JIRA)" <ji...@apache.org> on 2016/12/01 23:30:58 UTC

[jira] [Updated] (SPARK-18679) Regression in file listing performance

     [ https://issues.apache.org/jira/browse/SPARK-18679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Liang updated SPARK-18679:
-------------------------------
    Affects Version/s: 2.1.0

> Regression in file listing performance
> --------------------------------------
>
>                 Key: SPARK-18679
>                 URL: https://issues.apache.org/jira/browse/SPARK-18679
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.1.0
>            Reporter: Eric Liang
>            Priority: Blocker
>
> In Spark 2.1 ListingFileCatalog was significantly refactored (and renamed to InMemoryFileIndex).
> It seems there is a performance regression here where we no longer performance listing in parallel for the non-root directory. This forces file listing to be completely serial when resolving datasource tables that are not backed by an external catalog.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org